/Engine/Source/Runtime/Core/Public/Misc/CoreDelegates.h
Called when a target platform changes it's return value of supported formats. This is so anything caching those results can reset (like cached shaders for cooking)
static [TMulticastDelegate](API\Runtime\Core\Delegates\TMulticastDelegate)< void(const [ITargetPlatform](API\Developer\TargetPlatform\Interfaces\ITargetPlatform) *)> OnTargetPlatformChangedSupportedFormats;